168641-43-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168641-43-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,6,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 168641-43:
(8*1)+(7*6)+(6*8)+(5*6)+(4*4)+(3*1)+(2*4)+(1*3)=158
158 % 10 = 8
So 168641-43-8 is a valid CAS Registry Number.